PROCEEDINGS OF THE SHEVCHENKO SCIENTIFIC SOCIETY

Chemical Sciences

Archive / Volume LXX 2022

Iryna IVANENKO, Yurii FEDENKO, Anna STEPANOVA, Olena BYTS

National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Peremogy Ave., 37, 03056 Kyiv, Ukraine
e-mail: fedenkoyura@ukr.net

DOI: https://doi.org/10.37827/ntsh.chem.2022.70.138

SYNTHESIS OF TITANIUM (IV) OXIDE AND PROSPECTS OF ITS APPLICATION IN ADSORPTION AND PHOTOCATALYTIC WATER TREATMENT PROCESSES

Pure titanium oxide (TiO2(ng)) and modified with potassium fluoride with different percentage of dopant: 2, 7, 15% (TiO2(2F), TiO2(7F), TiO2(15F), respectively) samples were synthesized by low-temperature sol-gel method. The morphology and particle size of pure titanium(IV) oxide (TiO2(ng)) and titanium(IV) oxide doped with potassium fluoride (TiO2(2F)) were investigated by scanning electron microscopy method. It was found that the doping with potassium fluoride does not have a significant effect on the shape of the particles, but allows to narrow the particle size distribution. X-ray phase and X-ray structural analyzes of the obtained TiO2 samples showed that the predominant phases of pure TiO2 were rutile and brookite, and only anatase contained in TiO2 doped with KF. The porous structure of the synthesized TiO2 samples was studied by the method of low-temperature nitrogen adsorption-desorption. It was found that the all obtained TiO2 samples belonged to porous adsorbents, the adsorption of which carried out monolayer. The adsorption properties of the obtained TiO2 samples were investigated using a model pollutant, phenol. It was found that the best adsorption properties showed TiO2(2F) sample at all three concentrations of pollutant. The maximum adsorption degree of phenol with an initial concentration of 3.125 mg/dm3 (18%) was achieved by TiO2(2F) sample; with an initial phenol concentration of 6.25 mg/dm3 was 21.5%, and at an initial phenol concentration of 12.5 mg/dm3 it was 42%. The highest photocatatical activity was shown by the sample of low-doped fluorine TiO2, in the presence of which phenol was decomposed by 68%.

Keywords: titanium (IV) oxide, sol-gel method, doping, adsorption, photocatalyst.

References:

    1. Novopysmennyi S. A. The innovative approaches to creation of health saving environment in educational establishments. P. 16–18. (in Ukrainian). (http://techno.pnpu.edu.ua/zbirnyknaukprac/zbirnykBGD17.pdf).
    2. Ola O., Maroto-Valer M. Review of material design and reactor engineering on TiO2 photocatalysis for CO2 reduction. J. Photochem. Photobiol. C: Photochem. Rev. 2015. Vol. 24. P. 16–42. (https://doi.org/10.1016/j.jphotochemrev.2015.06.001).
    3. SharmilaDevi R., Venckatesh Dr.R., RajeshwariSivaraj Dr. Synthesis of Titanium Dioxide Nanoparticles by Sol-Gel Technique. Int. J. Innov. Res. Scie. Eng. Tech. 2014. Vol. 3(8). P. 15206–15211. (https://doi.org/10.15680/IJIRSET.2014.0308020).
    4. Chen X., Mao S. Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications. Chem. Rev. 2007. Vol. 7. P. 2891–2959. (https://doi.org/10.1021/cr0500535).
    5. Hanaor D., Sorrell C. Review of the anatase to rutile phase transformation. J. Mat. Scie. 2011. Vol. 46. P. 855–874. (https://doi.org/10.1007/s10853-010-5113-0).
    6. Chen X. Liu L., Yu P., Mao S. Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals. Scie. 2011. Vol. 331. P. 746–750. (https://doi.org/10.1126/science.1200448).
    7. Zhang F., Shi F., Ma W., Gao F., Jiao Y., Li H., Wang J., Shan X., Lu X., Meng S. Controlling Adsorption Structure of Eosin Y Dye on Nanocrystalline TiO2 Films for Improved Photovoltaic Performances. J. Phys. Chem. 2013. Vol. 117 P. 14659–14666. (https://doi.org/10.1021/jp404439p).
    8. Haider A.J., Al-Anbari R.H. Exploring potential Environmental applications of TiO2 Nanoparticles. Energ. Proc. 2017. Vol. 119. P. 332–345. (https://doi.org/10.1016/j.egypro.2017.07.117).
    9. Kandiel T.A., L. Robben, Alkaimad A. Brookite versus anatase TiO2 photocatalysts: phase transformations and photocatalytic activities. Photochem. Photobiol. Scie. 2013. Vol. 12. P. 602–609. (https://doi.org/10.1039/C2PP25217A).
    10. Ehsani A., Adeli S., Babaei F. Electrochemical and optical properties of TiO2 nanoparticles/ poly tyramine composite film. J. Electroanal. Chem. 2014. Vol. 713. P. 91–97. (https://doi.org/10.1016/j.jelechem.2013.12.003).
    11. Staudt J. Synthese, Characterization and optoelectronic applications of Nb-TiO2. Diss. 2019 (in German).(http://doi.org/10.22028/D291-31015).
    12. Winkler J. Titanium dioxide: production, properties and effective use. Hannover: Vincentz Network, 2013. 415 p. (in German).
    13. Riedel E., Janiak C. Inorganic chemistry (De Gruyter studies). Berlin: Walter De Gruyter GmbH, 2015. 386 p. (in German).
    14. Tekin D., Birhan D., Kiziltas H. Thermal, photocatalytic, and antibacterial properties of calcinated nano-TiO2/polymer composites. Mat. Chem. Phys. 2020. Vol. 1. P. 88–95. (https://doi.org/10.1016/j.matchemphys.2020.123067).
    15. Modes T. Structure and properties of TiO2 layers deposited by reactive plasma-activated electron beam evaporation. Diss. 2006. (in German). (https://doi.org/10.1016/j.surfcoat.2005.02.080).
    16. Kamaruddin S. TiO2 coatings for the production of photocatalytically modified SiO2-TiO2 composite materials. Diss. 2015. (in German).
    17. Tian Y., Zhang J. Monodisperse rutile microspheres with ultrasmall nanorods on surfaces: Synthesis, characterization, luminescence, and photocatalysis. J. Coll. Interf. Scie. 2012. Vol. 385. P. 1–7. (https://doi.org/10.1016/j.jcis.2012.06.086).
    18. Anpo M., Kamat P.V. Environmentally Benign Photocatalysts: Applications of Titanium Oxide-based Materials. New York: Springer. 2010. 757 p. (https://doi.org/10.1007/978-0-387-48444-0).
    19. Landmann M., Rauls E., Schmidt W.G. The electronic structure and optical response of rutile, anatase and brookite TiO2. J. Phys.: Condens. Matter. 2012. Vol. 24. P. 1–6. (https://doi.org/10.1088/0953-8984/24/19/195503).
    20. Hashimoto K., Irie H. TiO2 Photocatalysis: A Historical Overview and Future Prospects. Jap. J. Appl. Phys. 2005. Vol. 44. P. 8269–8285. (https://doi.org/10.1143/JJAP.44.8269).
    21. Ivanenko I.M., Kukh A.A., Byts O.V., Astrelin I.M. Synthesis and Adsorption Activity of ТiО2/ Activated Carbon Composites / Ed. G. Neeraja Rani, J. Anjaiah, P. Raju. Hamburg, Germany: American Institute of Physics Publishing. 2020. Vol. 2269(1). P. 030–099. (https://doi.org/10.1063/5.0019932).
    22. Kukh A.A., Ivanenko I.M., Astrelin I.M. TiO2 and its composites as effective photocatalyst for glucose degradation processes. Applied Nanoscience. 2019. Vol. 9. P. 677–682. (https://doi.org/10.1007/s13204-018-0691-2).

How to Cite

Ivanenko I., Fedenko Yu., Stepanova A., Byts O. SYNTHESIS OF TITANIUM (IV) OXIDE AND PROSPECTS OF ITS APPLICATION IN ADSORPTION AND PHOTOCATALYTIC WATER TREATMENT PROCESSES Proc. Shevchenko Sci. Soc. Chem. Sci. 2022 Vol. LXX. P. 138-150.

Download the pdf